Besides why is everyone care about whether Picard shouldn't have gotten involved or not, everything worked out in the end.

Because it's lazy storytelling. The entire movie depends on Picard constantly violating orders and when you combine lazy storytelling with stupidity, you have a pretty poor movie. Which is exactly what Insurrection is.

I've had the Blu-ray set for a year now and I still haven't watched Insurrection, I haven't even cracked open the its case.

Meh, just do what I do and ignore the finished version and track down the original treatment thingy Piller did, that seemed like it would have been a way better movie.